header {
  height: 0.5rem;
  background-color: #FF841D;
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
header a:nth-of-type(1) {
  display: flex;
  align-items: center;
}
header a:nth-of-type(1) img {
  margin-left: 0.2rem;
  width: 1.85rem;
}
header a:nth-of-type(2) img {
  height: 0.34rem;
}
#box ul {
  display: flex;
  flex-direction: column;
}
#box ul li {
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 0.4rem;
  font: 0.16rem/0.2rem "微软雅黑";
  color: #333;
  border-top: 0.01rem solid #ddd;
  padding: 0 0.2rem;
  background-color: #f5f5f5;
}
#box ul li:last-of-type {
  border-bottom: 0.01rem solid #ddd;
}
#a {
  cursor: pointer !important;
}
#aa {
  cursor: pointer !important;
}
.box2 {
  border-top: 0.01rem solid #ddd;
  border-left: 0.01rem solid #ddd;
  width: 100% !important;
  display: none;
}
.box2 nav {
  float: left;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  width: 25%;
  box-sizing: border-box;
  border-bottom: 0.01rem solid #ddd;
  border-right: 0.01rem solid #ddd;
  cursor: pointer;
}
.box2 nav p {
  font: 0.13rem/0.4rem "微软雅黑";
}
